Marine Sediments

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Jenbunni
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73384
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Marine Sediments
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2011-03-16 22:29:18
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Marine Sediments
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  1. A sediment is a particle that settled from a _____, like _____, _____, or _____.
    Fluid, Water, Ice, Air
  2. Marine sediments are classified according to the particle _____ and their _____.
    Size, Source
  3. The biggest particle size is called _____, and the smallest is called _____.
    Boulder, Clay
  4. Mud is a mixture of _____ and _____
    Silt, Clay
  5. A muddy beach indicates that _____ waves are absent from that area.
    Large
  6. Storm (LARGE) waves result in _____, or _____ beaches.
    boulder, cobble
  7. Sea shells are an example of _____ type sediments.
    Biogenous.
  8. Quartz sand is an example of _____ type sediments.
    lithogenous
  9. Layers of salt are an example of _____ type sediments.
    hydrogenous
  10. Meteorites are an example of _____ type sediments.
    cosmogenous
  11. Sand in a beach comes from _____, or dur to cliff _____.
    rivers, erosion.
  12. As the distance from the source increases, the particle size of lithogenous sediments _____.
    decreases
  13. Oozes are _____ that form from living organisms that live near the surface of the _____ sea.
    muds, deep
  14. The two types of oozes are _____ and _____.
    Calcareous and siliceous
  15. Calcareous oozes are produced by the remains of _____ and _____.
    foraminifera, cocolithophore
  16. CCD stands for _____.
    Carbonate compensation depth
  17. _____ the CCD there are no calcareous oozes due to their dissolution in _____ seawater in the deep sea.
    Below, acidic
  18. Siliceous oozes are produced by the remains of _____ and _____ shells.
    diatom, radiolarian
  19. Diatoms produce siliceous ooze in _____ water, and radiolarians in _____ water.
    cold, warm
  20. Rock salt forms due to the _____ of seawater.
    Evaporation
  21. Some hydrogenous sediments form due to excessive _____ of salts in seawater.
    Dissolution
  22. _____ layers form only when there are no other sediments present.
    Red Clay
  23. The presence of salt layers indicates that an ocean in that area _____.
    evaporated.
  24. Marine sediments indicate the _____ of the ocean.
    history
  25. The most common type of sediment in continental margins is _____.
    lithogenous
  26. The most common type of sediment in the ocean is _____.
    Biogenous
  27. Red Clay forms from wind-blown _____, and is found only where oceans were like _____ without any marine life.
    dust, deserts
  28. In a core sampled from the seafloor, the sediments near the bottom are _____ than those near the top.
    older
  29. Every sediment layer indicates a sedimentation _____ that represents the conditions that existed in the ocean.
    event
  30. Marine sedimentary rocks on land indicate that there used to be an _____ in that area.
    ocean
  31. Coral reeds produce _____ type sediments.
    biogenous
  32. Gravel is a mixture of _____, _____, and _____.
    Cobble, pebble, granule
  33. Calcareous ooze indicates that the water depth they deposited is shallower than _____.
    CCD
  34. _____ _____ indicates that the oceans were like deserts during the time it was deposited.
    Red Clay
  35. Manganese nodules in the ocean form when seawater has excess _____ ions.
    Manganese
  36. Oxygen isotopes in calcareious ooze can be used to determine the ocean _____ in the past.
    temperature

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